In 49 BCE, Bayek, a Medjay charged with protecting the Siwa Oasis, is abducted along with his son Khemu by a group of masked men and taken to an underground vault in the Temple of Amun. The masked men give Bayek a dormant Apple of Eden and demand that he use it to open a secret vault. Khemu helps Bayek escape, but while struggling with one of the masked men, Bayek inadvertently kills Khemu. One year later in 48 BCE, Bayek has exiled himself to track down the five masked men to take his revenge. He finds the first one, Rudjek "The Heron", and kills him. Bayek then returns to Siwa to kill the local priest Medunamun, "The Ibis", who has been torturing Siwans for information to open the same vault. Bayek then heads for Alexandria, where Aya has been tracking another of the masked men. Aya reveals that she has already killed Actaeon "The Vulture" and Ktesos "The Ram", leaving only one target left, "The Snake". Bayek identifies the Royal Scribe Eudoros as The Snake, but Bayek is disturbed by Eudoros' last words, which imply there are more masked men. Aya directs Bayek to her friend Apollodorus the Sicilian for more information. Apollodorus introduces him to Cleopatra, who confirms that the masked men form the Order of Ancients. The Order ousted her from the throne and seek to control all of Egypt by using Ptolemy as their puppet.
